Ah, my alma mater, this shit won't fly there.
Despite how the optics of the Jordan Peterson thing have been interpreted, and may have appeared, the student body as a whole is can be pretty ambivalent, and the school at large isn't much of an activist bastion.
However, if this rally were to take place, I think you'd see a massive engagement and counter-protest from students from all faculties who wouldn't normally engage in protest. This is the shit that will get UofT students attending for only the most instrumental reasons to come out and express themselves.